package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class    SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;

    /**
     * 新增套餐同时要新增套餐和菜品的关联关系
     * @param setmealDTO
     */
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        // 先保存套餐数据
        setmealMapper.insert(setmeal);
        //获取新插入的套餐的id
        Long setmealId = setmeal.getId();
        //在保存套餐和菜品的关联关系
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0) {
            for (SetmealDish setmealDish : setmealDishes) {
                setmealDish.setSetmealId(setmealId);
            }
            //批量插入套餐和菜品的关联关系
            setmealDishMapper.insertBatch(setmealDishes);
        }
    }

    /**
     * 套餐分页查询
     * @param setmealPageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(), setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);
        List<SetmealVO> records = page.getResult();
        Long total = page.getTotal();
        return new PageResult(total, records);
    }

    /**
     * 批量删除套餐
     * @param ids
     */
    @Override
    public void delete(List<Long> ids) {
        for (Long i: ids) {
            setmealMapper.delete(i);
        }
    }

    /**
     * 起售停售
     * @param status
     * @param id
     */
    @Override
    public void startOrStop(Integer status, Long id) {
        Setmeal setmeal = Setmeal.builder()
                .id(id)
                .status(status)
                .build();

        setmealMapper.update(setmeal);
    }

    /**
     * 根据id查询套餐和套餐项
     * @param id
     * @return
     */
    @Override
    public SetmealVO getByIdWithDish(Long id) {
        // 查询套餐数据
        SetmealVO setmeal = setmealMapper.getById(id);
        //查询套餐菜品数据
        List<SetmealDish> setmealDishes = setmealDishMapper.getBySetmealId(id);
        setmeal.setSetmealDishes(setmealDishes);

        return setmeal;
    }

    /**
     * 修改套餐
     * @param setmealDTO
     */
    @Override
    public void update(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.update(setmeal);
        //先删除旧套餐菜品数据
        setmealDishMapper.deleteBySetmealId(setmealDTO.getId());
        //再插入新套餐菜品数据
        setmealDishMapper.insertBatch(setmealDTO.getSetmealDishes());
    }

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}
